Essentially just ignoring those customers requests...
Ignoring the minority in order to keep serving the overwhelming majority.
0%-5% is a very big move...
Yes, as I just said it was originally intended to be tempory and reduced. But it turned out that it didn't reduce gambling volume and spending the money by adding reward points, a lottery etc. was a more successful way to expand the business by attracting more customers than lowering the house edge would have been.
Who's to say they're the minority, there seems to have been a lot of them here...
Wetsuit is clearly making a healthy profit from this so it's not like he can't afford changing it to a 3% house edge and still make a profit or see how it goes...